Laser-induced contamination of space borne laser systems: impact of organic contamination and mitigation by oxygen

M. Hippler; P. Wagner; H. Schroeder; W. Riede

doi:10.1117/12.2236897

27 September 2016 Laser-induced contamination of space borne laser systems: impact of organic contamination and mitigation by oxygen

M. Hippler, P. Wagner, H. Schroeder, W. Riede

Author Affiliations +

Proceedings Volume 9952, Systems Contamination: Prediction, Control, and Performance 2016; 99520N (2016) https://doi.org/10.1117/12.2236897
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

Laser-induced contamination (LIC) is still a major risk for space based laser systems. In this paper the mitigation of LIC by oxygen is investigated. Tests were performed with a pulsed laser at 355 nm. The partial pressure of the contamination material was in the range of 10^-5 -10^-4 mbar. The mitigation effect showed a threshold behavior concerning the ratio between contamination and oxygen pressure. Also a cleaning effect was successfully demonstrated: previously created depositions were completely removed by irradiation at several tens Pa oxygen pressure without any remaining degradation of the optical surface.

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M. Hippler, P. Wagner, H. Schroeder, and W. Riede "Laser-induced contamination of space borne laser systems: impact of organic contamination and mitigation by oxygen", Proc. SPIE 9952, Systems Contamination: Prediction, Control, and Performance 2016, 99520N (27 September 2016); https://doi.org/10.1117/12.2236897

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